I think there should be a couple variations of the simple platformer tutorial.

One that uses the standard classic physics variables gravity, friction, speed etc. and checks against objects for collisions (instead of tile map).

The current tutorial feels a bit more "advanced" for any new GM user to follow. It should be a little easier in my opinion using the terms (gravity, speed etc.) that the user feels comfortable with.

And there should be a second tutorial that demonstrates how to recreate the same platformer using the physics API, so that the user can judge and decide which system feels easier or better for their case.